90 research outputs found

    Evolución de la proteólisis durante la maduración de quesos Danbo elaborados con distintos cultivos iniciadores

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    La determinación de nitrógeno soluble a pH 4,6 (NNC), nitrógeno soluble en ácido tricloroacético (12 %) (NTCA) y nitrógeno soluble en ácido fosfotúngstico (5 %) (NPTA) se utiliza como índice de maduración de quesos, ya que proporciona información adecuada de la extensión global de la proteólisis. La formación de péptidos y aminoácidos durante la maduración del queso contribuye directamente al desarrollo del sabor y textura del queso, de allí la importancia de conocer si el uso de distintos cultivos iniciadores genera diferencias en el desarrollo de la proteólisis. En este trabajo se estudiaron los cambios proteolíticos durante la maduración de quesos Danbo elaborados con cultivos iniciadores que difieren en la proporción de sus microorganismos componentes: Lote A con: 60 % Streptococcus thermophilus subsp. thermophilus – 40 % (Lactococcus lactis subsp. lactis + Lactococcus lactis subsp. cremoris) y Lote B con: 50 % Streptococcus thermophilus subsp. thermophilus – 50 % (Lactococcus lactis subsp. lactis y Lactococcus lactis subsp. cremoris). Se analizaron quesos con 0, 15, 30 y 45 días de maduración y se determinó contenido de humedad, pH, contenido de nitrógeno en queso y contenido de nitrógeno de las distintas fracciones nitrogenadas. El lote elaborado con un mayor porcentaje de cultivo mesófilo (Lactococcus lactis subsp. lactis y Lactococcus lactis subsp. cremoris), lote B, fue el que presentó mayor proteólisis primaria y mayor formación de oligopéptidos y aminoácidos libres

    L'asma nel bambino: dalla diagnosi alla terapia

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    Gli autori descrivono i vari steps diagnostici dell'asma bronchiale infantile e la terapia finora disponibile, basata sull'uso di farmaci differenti a seconda della gravit\ue0 della malattia e della presenza o meno di accessualit\ue0

    Chronic Interstitial lung disease in children

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    Chronic interstitial lung disease (ILD) is rare in children, but is clinically relevant because of its high morbidity and mortality rates. Several aetiological agents may have a role in this disease and various aetiopathogenic forms have been described, although they share a characteristic evolution towards pulmonary fibrosis. The aetiology sometimes remains unknown, in which case we speak of idiopathic interstitial pneumonia (IIP). Diagnosis relies on non-invasive methods (clinical history, respiratory function tests, chest X-ray and high-resolution CT scan) and invasive techniques (bronchoalveolar lavage, transbronchial biopsy, video-assisted thoracoscopic biopsy and open lung biopsy); the latter are used when the former fail to identify an aetiological agent. The gold standard for the diagnosis is lung biopsy, however, which also enables the classification of the idiopathic forms, in particular (usual interstitial pneumonia, desquamative interstitial pneumonia, non-specific interstitial pneumonia, and so on). In ILD, the most common therapeutic approaches involve the use of oral steroids and hydroxychloroquine sulphate for its anti-inflammatory and antifibrotic effect. The prognosis is often poor

    Asma in et\ue0 pediatrica: le dimensioni socio-economiche del problema

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    Nel lavoro viene fatta una revisione della letteratura sulle dimensioni socioeconomiche dell'asma, considerando i costi diretti e indiretti sulla famiglia e la Societ\ue0

    Case 4: presentation Interstitial lung disease. In a child with systemic lupus erythematotus

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    The AA. describe the presence of ILD in a child with LES,as manifestation of autoimmune disease

    Lo stridore laringeo:inquadramento nosologico ed iter diagnostico

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    Nel lavoro vengono riportati alcuni casi clinici di stridore laringeo in lattanti e ne vengono descritte le possibili etiologie, le possibilit\ue0 diagnostiche e terapeutiche

    Chronic cough and neutrophilic BAL in children

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